Portion of a contrast media reservoir



FIG. 1 is a perspective view of a portion of a contrast media reservoir,showing my new design;

FIG. 2 is a front elevational view thereof, the left side, right sideand rear elevational views thereof being identical;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The structure shown in phantom is for illustrative purposes only andforms no part of the claimed design.

The ornamental design for a portion of a contrast media reservoir, asshown and described.